Add 15/28 and 10/5
1st number: 15/28, 2nd number: 2 0/5
15/28 + 10/5 is 71/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
10/5 = 10 × 28/5 × 28 = 280/140 - Add the two like fractions:
75/140 + 280/140 = 75 + 280/140 = 355/140 - 355/140 simplified gives 71/28
- So, 15/28 + 10/5 = 71/28
In mixed form: 215/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+10/5 15/28+20/5 15/56+10/5 45/28+10/5 15/28+30/5 15/84+10/5 15/28+10/15 75/28+10/5 15/28+50/5 15/28+10/25 15/28+70/5 15/28+10/35